>>8755629
>>8755707
>>8755715
I am writing a story starring a half-succubus wife and her hero boyfriend. I was thinking of this as the in-narrative reason for the NTS:
>while adventuring they start noticing that the succubus' power level is getting lower
>they go to an expert to find answers and they are told that sperm has diminishing returns on the power it restores, so when they got together, her womb was increasing tolerance to the MC's sperm
>the pair now have to find the top bull/s during their adventure so she can replenish her powers
>reclamation sex with the hero is only possible when her womb has "forgotten" his sperm so they have to keep filling her up with various men's sperm first before he's allowed to have sex with her